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ManualsBrandsGrundfos ManualsCirculator PumpsTP50-160/2 Direct Coupled In-Line Circulator, 1-1/2 HP, RUUE Seal, Cast Iron, 208-230/460V, GF 50 Flange Mount

r

1

r

2

1

2

α

1

α

2

U

1

U

2

C

1m

C

2m

C

2u

C

2

W

1

W

2

β

1

β

2

Chapter 4

Pump theory

4.1 Velocity triangles

4.2 Euler’s pump equation

4.3 Blade form and pump curve

4.4 Usage of Euler’s pump equation

4.5 Anity rules

4.6 Inlet rotation

4.7 Slip

4.8 Speciﬁc speed of a pump

4.9 Summary